Fabrication and characterization of Fe 3 O 4 @APTES@PAMAM-Ag highly active and recyclable magnetic nanocatalyst: Catalytic reduction of 4-nitrophenol
Source abstract
Abstract
Abstract The surface of amine-fuctionalized magnetic nanoparticle was coated with polyamidoamine dendrimer via of alkylation of amine groups with methyl acrylate (Micheal addition route). Then silver nanoparticles were doped between the layers of dendrimer branches. The as-prepared nanocomposite is composed of a central magnetite core with a strong response to external fields, an interlayer of SiO 2 , polyamidoamine dendrimer (G1) and numerous highly dispersed Ag nanoparticles with a narrow size distribution. The crystallite size from XRD (9 ± 2 nm) and particle size from TEM analysis (11.6 ± 0.2 nm) are consistent with each other. The catalytic activity of nanocomposite was tested against 4-nitrophenol. It has well magnetic separability and excellent reusability without major loss and activity (it can be conveniently recycled from the reaction system by using a magnet) and no deactivation has been observed after at least 5 cycles of reaction.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nanomaterials for catalytic reactions · Dendrimers and Hyperbranched Polymers · Graphene and Nanomaterials Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Synthesis of conducting ferromagnetic nanocomposite with improved microwave absorption properties10.1016/j.matchemphys.2009.08.060 ↗
2. Preparation and coercivity and saturation magnetization dependence of inductive heating property of Fe3O4 nanoparticles in an alternating current magnetic field for localized hyperthermia10.1016/j.jallcom.2008.01.083 ↗
3. Conversion of glycerol into allyl alcohol over potassium-supported zirconia–iron oxide catalyst10.1016/j.apcatb.2013.03.007 ↗
4. Synthesis, characterization and catalytic activity of CoFe2O4-APTES-Pd magnetic recyclable catalyst10.1016/j.jallcom.2013.07.174 ↗
5. Synthesis and characterization of catalytically activity Fe3O4-3-aminopropyl-triethoxysilane/Pd nanocomposite10.1007/s10904-012-9796-3 ↗
6. Enhanced activity of Pt nanoparticle catalysts supported on manganese oxide-carbon nanotubes for ethanol oxidation10.1016/j.ijhydene.2013.10.108 ↗
7. Synthesis and characterization of NiFe2O4–Pd magnetically recyclable catalyst for hydrogenation reaction10.1016/j.materresbull.2012.09.011 ↗
8. A novel green synthesis and characterization of Ag NPs with its ultra-rapid catalytic reduction of methyl green dye10.1016/j.apsusc.2013.11.106 ↗
9. Magnetite–polypeptide hybrid materials decorated with gold nanoparticles: study of their catalytic activity in 4-nitrophenol reduction10.1021/jp309145r ↗
10. Palladium nanoparticles decorated carbon nanotubes: facile synthesis and their applications as highly efficient catalysts for the reduction of 4-nitrophenol10.1039/c2gc16359d ↗
11. Synthesis of stable SiO2@Au-nanoring colloids as recyclable catalysts: galvanic replacement taking place on the surface10.1021/jp2119185 ↗
12. Mercaptosilane-assisted synthesis of metal clusters within zeolites and catalytic consequences of encapsulation10.1021/ja102778e ↗
13. A general approach to mesoporous metal oxide microspheres loaded with noble metal nanoparticles10.1002/anie.201106948 ↗
14. An efficient method of SPION synthesis coated with third generation PAMAM dendrimer10.1016/j.colsurfa.2013.04.003 ↗
15. Fabrication and characterization of dendrimer-encapsulated monometallic Co nanoparticles10.1016/j.jallcom.2011.02.038 ↗
16. One-pot synthesis of Ag–Fe3O4 nanocomposite: a magnetically recyclable and efficient catalyst for epoxidation of styrenew10.1039/b805737k ↗
17. Multifunctional nanocomposites constructed from Fe3O4–Au nanoparticle cores and a porous silica shell in the solution phase10.1039/c1dt10374a ↗
18. Tubular nanocomposite catalysts based on size-controlled and highly dispersed silver nanoparticles assembled on electrospun silica nanotubes for catalytic reduction of 4-nitrophenol10.1039/C1JM13421C ↗
19. Effect of initial solution apparent pH on nano-sized nickel catalysts in p-nitrophenol hydrogenation10.1016/j.cej.2008.07.042 ↗
20. Dendrimer modified magnetite nanoparticles for protein immobilization10.1016/j.jcis.2004.09.073 ↗
21. Fabrication and functionalization of dendritic poly(amidoamine)-immobilized magnetic polymer composite microspheres10.1021/jp077465x ↗
22. Low temperature magnetic investigation of Fe3O4 nanoparticles filled into multiwalled carbon nanotubes10.1016/j.synthmet.2013.10.027 ↗
23. Synthesis of protoporphyrin coated superparamagnetic iron oxide nanoparticles via dopamine anchor10.1016/j.jallcom.2010.04.192 ↗
24. Cefditorene-mediated synthesis of silver nanoparticles and its catalytic activity10.1007/s10904-013-9882-1 ↗
25. A novel green synthesis and characterization of Ag NPs with its ultra-rapid catalytic reduction of methyl green dye10.1016/j.apsusc.2013.11.106 ↗
26. Quantitative methods for nanopowders characterization10.1016/j.apsusc.2006.05.089 ↗
27. Analytical expression for diffraction line profile for polydispersive powders
28. l-lysine coated iron oxide nanoparticles: synthesis, structural and conductivity characterization10.1016/j.jallcom.2009.04.103 ↗
29. Synthesis and characterization of L-carnosine coated iron oxide nanoparticles10.1016/j.jallcom.2010.11.088 ↗
30. Synthesis of Fe3O4 nanoparticles at 100°C and its magnetic characterization10.1016/j.jallcom.2008.04.101 ↗
31. A simple synthesis of amine-derivatised superparamagnetic iron oxide nanoparticles for bioapplications10.1007/s10853-007-1597-7 ↗
32. Launer · 1987
33. Preparation and characterization of (3-aminopropyl)triethoxysilane-coated magnetite nanoparticles10.1016/j.jmmm.2004.01.094 ↗
34. Preparation and characterization of thermosensitive polymers grafted onto silica -coated iron oxide nanoparticles10.1016/j.jcis.2008.06.020 ↗
35. Magnetic core-shell Fe3O4@Ag nanoparticle-coated carbon paste interface for studies of carcinoembryonic antigen in clinical immunoassay10.1021/jp060950s ↗
36. Preparation and coercivity and saturation magnetization dependence of inductive heating property of Fe3O4 nanoparticles in an alternating current magnetic field for localized hyperthermia10.1016/j.jallcom.2008.01.083 ↗
37. Poly(amidoamine)-grafted superparamagnetic iron oxide nanoparticles: synthesis and characterization10.1007/s10948-014-2555-7 ↗
38. Finite-size effects in fine particles: magnetic and transport properties10.1088/0022-3727/35/6/201 ↗
39. Surface spin disorder in NiFe2O4 nanoparticles
40. Multifunctional mesoporous composite microspheres with well-designed nanostructure: a highly integrated catalyst system10.1021/ja1025744 ↗
41. Multifunctional magnetic composite microspheres with in situ growth Au nanoparticles: a highly efficient catalyst system10.1021/jp109276q ↗
42. Catalytic reduction of aromatic nitro compounds by coinage metal nanoparticles10.1021/la000862d ↗
43. Facile green synthesis, characterization, and catalytic function of β-D-glucose-stabilized Au nanocrystals10.1002/chem.200500925 ↗
44. Environmentally friendly light-driven synthesis of Ag nanoparticles in situ grown on magnetically separable biohydrogels as highly active and recyclable catalysts for 4-nitrophenol reduction10.1039/c2jm35616c ↗
45. Synthesis of Fe3O4@SiO2–Ag magnetic nanocomposite based on small-sized and highly dispersed silver nanoparticles for catalytic reduction of 4-nitrophenol10.1016/j.jcis.2012.06.027 ↗
46. Silver nanoparticle supported on halloysite nanotubes catalyzed reduction of 4-nitrophenol (4-NP)10.1016/j.apsusc.2008.10.094 ↗
47. Carbon spheres with controllable silver nanoparticle doping10.1021/jp9102492 ↗
48. Fe3O4@PS@PAMAM-Ag magnetic nanocatalysts and their recoverable catalytic ability10.1016/S1872-2067(11)60369-0 ↗
49. Polymer nanoparticles with dendrimer-Ag shell and its application in catalysis10.1016/j.partic.2011.06.012 ↗
50. Polymer particles with dendrimer@SiO2–Ag hierarchical shell and their application in catalytic column10.1016/j.jcis.2011.11.054 ↗
51. Synthesis and characterization of Cu, Ag and Au dendrimer-encapsulated nanoparticles and their application in the reduction of 4-nitrophenol to 4-aminophenol10.1016/j.jcis.2012.09.012 ↗
52. Encapsulation of silver nanoparticles into graphite grafted with hyperbranched poly(amidoamine) dendrimer and their catalytic activity towards reduction of nitro aromatics10.1016/j.molcata.2012.04.001 ↗